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Finding the Fourth Proportional to 152,636.58, 210,600.90 and 91,402.88

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Solution

The fourth proportional to 152,636.58, 210,600.90 and 91,402.88 is: 126,113.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,636.58 : 210,600.90 = 91,402.88 : x
  2. Step 2: Convert to fraction form
    152,636.58/210,600.90 = 91,402.88/x
  3. Step 3: Cross multiply
    152,636.58x = 210,600.90 × 91,402.88
  4. Step 4: Simplify right side
    152,636.58x = 19,249,528,790.59
  5. Step 5: Solve for x
    x = 19,249,528,790.59/152,636.58
  6. Step 6: Final answer
    x = 126,113.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.